Smoke exhaust device for laser cutting machine
By setting up an air suction cover and a waste slag collection tank on the laser cutting machine platform, the problem of difficulty in capturing smoke and dust in the laser cutting machine is solved, and efficient smoke collection and dust removal effects are achieved.
Patent Information
- Application Number
- CN202421941780.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The smoke generated by existing laser cutting machines cannot be effectively captured during the cutting process, especially due to the high heat, the smoke emits upward at a speed of 1-2 meters per second, and cannot form a stable transverse air flow, resulting in poor dust removal effect.
A suction hood is set up directly above the laser cutting machine platform, and the smoke enters the suction hood from bottom to bottom. The nylon cloth and sliding rod structure in the suction hood ensure that the movement of the cutting head is not affected. At the same time, a waste slag collection tank and a blowing tube are set up to improve the smoke capture rate.
Effectively capture and collect smoke and dust generated by cutting, reduce smoke and dust spillover and improve dust removal efficiency.
Smart Images
Figure CN223301067U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a smoke exhaust device for a laser cutting machine, belonging to the technical field of smoke exhaust for laser cutting machines. Background Art
[0002] Laser cutting utilizes a focused, high-power density laser beam to illuminate sheet metal, causing it to rapidly melt, vaporize, ablate, or reach its ignition point. Simultaneously, a high-speed airflow coaxial with the beam removes the molten material, achieving the desired effect. Compared to other cutting methods, such as plasma cutting, flame cutting, and wire cutting, laser cutting offers advantages such as a smaller heat-affected zone, faster cutting speeds, and superior cutting quality. Consequently, it has rapidly gained widespread application in sheet metal cutting.
[0003] Existing laser cutting machines generate a large amount of smoke and dust during the cutting process. To solve this problem, existing dust removal methods generally install exhaust ducts on both sides of the cutting platform of the laser cutting machine. The inlet and outlet of the exhaust ducts move with the laser cutting head. However, the width of the laser cutting machine is generally more than 3 meters, and some can reach 7-8 meters. Such a long distance cannot generate a stable horizontal airflow. Due to the high heat, most of the smoke generated by laser cutting is emitted upward at a speed of 1-2 meters per second, making it impossible to effectively capture the smoke and dust.
[0004] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content
[0005] Aiming at the deficiencies in the background technology, the utility model provides a smoke exhaust device for a laser cutting machine. An air suction hood is arranged just above the laser cutting machine platform, and smoke generated by cutting is sent into the air suction hood from bottom to bottom, with a high smoke capture rate.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0007] A smoke exhaust device for a laser cutting machine includes a laser cutting platform, a movable crossbeam slidably provided on the laser cutting platform, a cutting head provided on one side of the movable crossbeam, and an air suction hood provided at the lower end of the movable crossbeam. The air suction hood includes an annular outer wall and an annular inner wall, an annular flue is formed between the annular outer wall and the annular inner wall, and the cutting head slides in the space inside the annular inner wall of the air suction hood;
[0008] The annular inner wall of the suction hood is symmetrically provided with a second track on both sides along the length direction, and a plurality of sliding rods are slidably installed on the second track. Nylon cloth is provided on both sides of the cutting head. One end of the nylon cloth is fixed to the end of the inner space of the annular inner wall, and the other end is fixed to the cutting head. The two ends of the nylon cloth are fixed on the sliding rod at equal intervals.
[0009] Furthermore, the annular inner wall of the air suction hood is lower than the annular outer wall.
[0010] Furthermore, air exhaust pipes are respectively provided on both sides of the annular outer wall of the air suction hood.
[0011] Furthermore, a first track is provided on both sides of the cutting head, a sliding frame is installed in the first track for sliding up and down, the sliding frame is provided with track wheels, and the lower end of the sliding frame is fixed on the sliding rod.
[0012] Furthermore, a waste slag collection trough is provided on the lower side of the laser cutting platform.
[0013] Furthermore, rollers are respectively installed on both sides of the waste residue collecting trough, and a third track is provided on the inner side of the laser cutting platform, and the rollers cooperate with the third track.
[0014] Furthermore, a blowing pipe is fixedly installed just above the waste residue collecting tank, a plurality of air injection ports are provided above the blowing pipe, and compressed air is passed through the blowing pipe.
[0015] Furthermore, connecting arms are fixed on both sides of the waste slag collection trough, and avoidance grooves are provided on both sides of the laser cutting platform. The connecting arms pass through the avoidance grooves and are fixed on the movable beam, so that the waste slag collection trough is always located directly below the cutting head.
[0016] Compared with the prior art, the present invention has the following advantages after adopting the above technical solution:
[0017] 1. A suction hood is provided at the lower end of the movable crossbeam. When the cutting head slides laterally along the movable crossbeam, the nylon cloths on both sides are pushed and pulled so that the nylon cloths do not affect the lateral movement of the cutting head. At the same time, the nylon cloths can close the space inside the annular inner wall of the suction hood. A first track is provided on each side of the cutting head. A sliding frame is installed in the first track for up and down sliding. The sliding frame is provided with a track wheel. The lower end of the sliding frame is fixed on the sliding rod, so that the nylon cloth will not affect the up and down longitudinal movement of the cutting head.
[0018] 2. A waste slag collection trough is provided on the lower side of the laser cutting platform. Connecting arms are fixed on both sides of the waste slag collection trough. The connecting arms are fixed on the moving crossbeam, so that the waste slag collection trough can move synchronously with the moving crossbeam. The waste cut by the cutting head falls into the waste slag collection trough for easy collection. A blow pipe is fixedly installed directly above the waste slag collection trough. The compressed air ejected from the blow pipe pushes the smoke and dust upward, further reducing the overflow of smoke and dust and improving the smoke and dust capture rate.
[0019] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional diagram of the utility model;
[0021] Figure 2 It is a side view of the utility model;
[0022] Figure 3 yes Figure 2 Cross-sectional view along the middle line AA;
[0023] Figure 4 It is a structural diagram of the waste residue collection tank in the utility model;
[0024] Figure 5 This is a schematic structural diagram of the air suction hood in the utility model;
[0025] Figure 6 It is a structural schematic diagram of the utility model including an air suction hood, a sliding rod and a sliding frame.
[0026] In the figure,
[0027] 1-laser cutting platform, 101-avoidance groove, 102-third track, 2-moving beam, 3-cutting head, 4-first track, 5-sliding frame, 501-track wheel, 6-suction hood, 601-annular outer wall, 602-annular inner wall, 603-exhaust pipe, 7-sliding rod, 8-second track, 9-connecting arm, 10-waste collection trough, 11-roller, 12-blowing pipe. DETAILED DESCRIPTION
[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.
[0029] like Figure 1-3 As shown, the utility model provides a smoke exhaust device for a laser cutting machine, comprising a laser cutting platform 1 , a movable crossbeam 2 is slidably provided on the laser cutting platform 1 , and a cutting head 3 is provided on one side of the movable crossbeam 2 .
[0030] A suction hood 6 is provided at the lower end of the movable crossbeam 2. The suction hood 6 includes an annular outer wall 601 and an annular inner wall 602. An annular flue is formed between the annular outer wall 601 and the annular inner wall 602. The cutting head 3 slides in the space inside the annular inner wall 602 of the suction hood 6.
[0031] The annular inner wall 602 of the air suction cover 6 is symmetrically provided with a second track 8 on both sides along the length direction. Figure 5 , a plurality of sliding rods 7 are slidably mounted on the second track 8, such as Figure 6Nylon cloth (not shown in the figure) is provided on both sides of the cutting head 3. One end of the nylon cloth is fixed to the end of the inner space of the annular inner wall 602, and the other end is fixed to the cutting head 3. The two ends of the nylon cloth are fixed on the sliding rod 7 at equal intervals. The sliding rod 7 supports the nylon cloth. When the cutting head 3 slides horizontally along the movable beam 2, the nylon cloth on both sides is pushed and pulled so that the nylon cloth does not affect the movement of the cutting head 3. At the same time, the nylon cloth can seal the space inside the annular inner wall 602 of the suction hood 6.
[0032] like Figure 5 The annular inner wall 602 of the suction hood 6 is lower than the annular outer wall 601, and the smoke and dust rising into the suction hood 6 is blocked within the annular outer wall 601, so that the smoke and dust are effectively collected.
[0033] The two sides of the annular outer wall 601 of the suction hood 6 are respectively provided with exhaust pipes 603, and the exhaust pipes 603 extract the smoke and dust gathered in the annular outer wall 601.
[0034] A first track 4 is provided on both sides of the cutting head 3 , and a sliding frame 5 is installed in the first track 4 for sliding up and down. The sliding frame 5 is provided with a track wheel 501 , and the lower end of the sliding frame 5 is fixed on the sliding rod 7 .
[0035] The lower side of the laser cutting platform 1 is provided with a waste slag collecting tank 10, such as Figure 4 The waste residue collecting trough 10 moves along the length direction of the laser cutting platform 1 with the cutting head 3 .
[0036] Rollers 11 are respectively installed on both sides of the waste residue collecting trough 10 , and a third track 102 is provided on the inner side of the laser cutting platform 1 , and the rollers 11 cooperate with the third track 102 .
[0037] A blowing pipe 12 is fixedly installed just above the waste residue collecting tank 10 . A plurality of air jets are provided above the blowing pipe 12 , and compressed air is passed through the blowing pipe 12 .
[0038] Connecting arms 9 are fixed on both sides of the waste slag collection trough 10, and avoidance grooves 101 are provided on both sides of the laser cutting platform 1. The connecting arms 9 pass through the avoidance grooves 101 and are fixed on the moving beam 2, so that the waste slag collection trough 10 is always located directly below the cutting head 3.
[0039] The specific working principle of this utility model:
[0040] The lower end of the movable crossbeam 2 is provided with a suction hood 6, and the annular inner wall 602 of the suction hood 6 is lower than the annular outer wall 601. The smoke and dust rising into the suction hood 6 are blocked within the annular outer wall 601, so that the smoke and dust are effectively collected; the annular inner wall 602 of the suction hood 6 is symmetrically provided with a second track 8 on both sides along the length direction, and a plurality of sliding rods 7 are slidably installed on the second track 8. Nylon cloth (not shown in the figure) is respectively provided on both sides of the cutting head 3. One end of the nylon cloth is fixed to the end of the inner space of the annular inner wall 602, and the other end is fixed to the cutting head 3. Both ends of the nylon cloth The cutting head 3 is fixed on the sliding rod 7 at equal intervals, and the sliding rod 7 supports the nylon cloth. When the cutting head 3 slides horizontally along the moving beam 2, the nylon cloth on both sides is pushed and pulled so that the nylon cloth does not affect the horizontal movement of the cutting head 3. At the same time, the nylon cloth can close the space inside the annular inner wall 602 of the suction hood 6; a first track 4 is provided on both sides of the cutting head 3, and a sliding frame 5 is installed in the first track 4 for sliding up and down. The sliding frame 5 is provided with a track wheel 501, and the lower end of the sliding frame 5 is fixed on the sliding rod 7, so that the nylon cloth will not affect the vertical movement of the cutting head 3.
[0041] A waste slag collection trough 10 is provided on the lower side of the laser cutting platform 1, and connecting arms 9 are fixed on both sides of the waste slag collection trough 10. The connecting arms 9 are fixed on the moving crossbeam 2, so that the waste slag collection trough 10 can move synchronously with the moving crossbeam 2, and the waste cut by the cutting head 3 falls into the waste slag collection trough 10 for easy collection; a blow pipe 12 is fixedly installed directly above the waste slag collection trough 10, and the compressed air ejected from the blow pipe 12 pushes the smoke and dust upward, further reducing the overflow of smoke and dust and improving the capture rate of smoke and dust.
[0042] The above description is merely an example of the preferred embodiment of the present invention. Any details not described in detail are common knowledge within the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.
Claims
1. A smoke exhaust device for a laser cutting machine, comprising a laser cutting platform (1), a movable beam (2) slidingly provided on the laser cutting platform (1), a cutting head (3) provided on one side of the movable beam (2), and characterized in that: A suction hood (6) is provided at the lower end of the movable crossbeam (2), the suction hood (6) comprising an annular outer wall (601) and an annular inner wall (602), an annular flue is formed between the annular outer wall (601) and the annular inner wall (602), and the cutting head (3) slides in the space inside the annular inner wall (602) of the suction hood (6); The annular inner wall (602) of the suction hood (6) is symmetrically provided with second tracks (8) on both sides along the length direction, and a plurality of sliding rods (7) are slidably mounted on the second tracks (8). Nylon cloth is provided on both sides of the cutting head (3), one end of the nylon cloth is fixed to the end of the inner space of the annular inner wall (602), and the other end is fixed to the cutting head (3), and the two ends of the nylon cloth are fixed to the sliding rods (7) at equal intervals.
2. A smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: The annular inner wall (602) of the air suction hood (6) is lower than the annular outer wall (601).
3. A smoke exhaust device for a laser cutting machine according to claim 2, characterized in that: Air extraction pipes (603) are respectively provided on both sides of the annular outer wall (601) of the air suction hood (6).
4. The smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A first track (4) is provided on both sides of the cutting head (3), a sliding frame (5) is installed in the first track (4) to slide up and down, a track wheel (501) is provided on the sliding frame (5), and the lower end of the sliding frame (5) is fixed on the sliding rod (7).
5. The smoke exhaust device for a laser cutting machine according to claim 1, characterized in that: A waste slag collecting trough (10) is provided on the lower side of the laser cutting platform (1).
6. A smoke exhaust device for a laser cutting machine according to claim 5, characterized in that: Rollers (11) are respectively installed on both sides of the waste residue collection trough (10), and a third track (102) is provided on the inner side of the laser cutting platform (1), and the rollers (11) cooperate with the third track (102).
7. A smoke exhaust device for a laser cutting machine according to claim 6, characterized in that: A blowing pipe (12) is fixedly installed just above the waste residue collecting tank (10), a plurality of air jets are provided above the blowing pipe (12), and compressed air is passed through the blowing pipe (12).
8. A smoke exhaust device for a laser cutting machine according to claim 7, characterized in that: Connecting arms (9) are fixed on both sides of the waste slag collection trough (10), and avoidance grooves (101) are provided on both sides of the laser cutting platform (1). The connecting arms (9) pass through the avoidance grooves (101) and are fixed on the movable crossbeam (2), so that the waste slag collection trough (10) is always located directly below the cutting head (3).